Valeport - Model VRS-20 -Oceanographic Radar Level Sensor

Non-contact technology removes the installation, corrosion & fouling issues of submerged sensors, while simplifying datum control.   Accuracy and performance are unaffected by changes in water density and atmospheric conditions.

• Minimum Range: 0.8 m
• Maximum Range: 20 m
• Beam Angle: ±6°
• Frequency: 25 GHz
• Accuracy: ±10 mm
• Precision: 1 mm
• Footprint: Radius at different ranges:

Type Approval

• The VRS20 radar sensor is fully compliant with:
• ETSI EN 302 729-2 V1.1.2(2011-05) Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Level Probing Radar (LPR) equipment operating in the frequency ranges 6 GHz to 8,5 GHz, 24,05 GHz to 26,5 GHz, 57 GHz to 64 GHz, 75 GHz to 85 GHz;

Sampling

• The VRS-20 offers averaged data output options for water level / tide measurements only. Wave measurement
• sampling is not available.
• Raw Sampling Rate: 8 Hz
• Averaging period: Selectable (10 to 360 seconds)
• Output Parameters:
• Mean Range
• Mean Height
• Std. Deviation

Electrical

• Range: 9-28 V DC
• Power: 35mA @ 12v dc

Communications

• RS232/485 and SDI12 fitted as standard with communications method defined by pin selection.
• Optional integrated GPRS telemetry module
• RS232: Up to 200m cable, direct to serial port
• RS485: Up to 1000m cable, addressable half duplex
• SDI 12: Up to 100m cable.

Housing & Mounting

• Fully sealed, injection moulded housing rated to
• IP67 (NEMA 6) with PTFE window.
• Integral stainless steel mounting bracket with tool
• free, 2 axis adjustment.
• Integrated spirit bubbles for easy levelling.
• Length: 255mm
• Width: 130mm
• Height: 130mm (75mm without mount)
• Weight: ~2 kg